>>42195687>252 Atk Mold Breaker Excadrill Earthquake vs. 252 HP / 132+ Def Mudsdale: 135-160 (33.4 - 39.6%) -- 19.8% chance to 3HKO after Leftovers recovery>252 Atk Mold Breaker Excadrill Earthquake vs. +1 252 HP / 132+ Def Mudsdale: 91-108 (22.5 - 26.7%) -- possible 5HKO after Leftovers recovery>0 Atk Mudsdale Earthquake vs. 0 HP / 0 Def Excadrill: 396-468 (109.6 - 129.6%) -- guaranteed OHKOI just took the first set I found for Mudsdale, but I'm pretty sure any HP and/or Def invested set can deal with Exca pretty easily.
Not to mention that Mudsdale can run Body Press. It's not an absolute beast, but I genuinely think it's underrated.
I hope they give it Slack Off someday, so it can get into top UU and maybe even OU.